1 | /* SPDX-License-Identifier: BSD-2-Clause */ |
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2 | |
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3 | /** |
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4 | * @file |
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5 | * |
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6 | * @ingroup RTEMSImplClassicTask |
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7 | * |
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8 | * @brief This source file contains the implementation of |
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9 | * rtems_task_create(). |
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10 | */ |
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11 | |
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12 | /* |
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13 | * Copyright (C) 2020 embedded brains GmbH & Co. KG |
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14 | * |
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15 | * Redistribution and use in source and binary forms, with or without |
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16 | * modification, are permitted provided that the following conditions |
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17 | * are met: |
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18 | * 1. Redistributions of source code must retain the above copyright |
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19 | * notice, this list of conditions and the following disclaimer. |
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20 | * 2. Redistributions in binary form must reproduce the above copyright |
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21 | * notice, this list of conditions and the following disclaimer in the |
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22 | * documentation and/or other materials provided with the distribution. |
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23 | * |
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24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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34 | * POSSIBILITY OF SUCH DAMAGE. |
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35 | */ |
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36 | |
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37 | #ifdef HAVE_CONFIG_H |
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38 | #include "config.h" |
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39 | #endif |
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40 | |
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41 | #include <rtems/rtems/tasksimpl.h> |
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42 | #include <rtems/score/stackimpl.h> |
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43 | |
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44 | #include <string.h> |
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45 | |
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46 | static rtems_status_code _RTEMS_tasks_Allocate_and_prepare_stack( |
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47 | Thread_Configuration *thread_config, |
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48 | const rtems_task_config *config |
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49 | ) |
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50 | { |
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51 | size_t size; |
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52 | |
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53 | thread_config->stack_free = _Stack_Free; |
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54 | size = _Stack_Ensure_minimum( config->storage_size ); |
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55 | size = _Stack_Extend_size( size, thread_config->is_fp ); |
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56 | thread_config->stack_size = size; |
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57 | thread_config->stack_area = _Stack_Allocate( size ); |
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58 | |
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59 | if ( thread_config->stack_area == NULL ) { |
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60 | return RTEMS_UNSATISFIED; |
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61 | } |
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62 | |
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63 | return RTEMS_SUCCESSFUL; |
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64 | } |
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65 | |
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66 | rtems_status_code rtems_task_create( |
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67 | rtems_name name, |
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68 | rtems_task_priority initial_priority, |
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69 | size_t stack_size, |
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70 | rtems_mode initial_modes, |
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71 | rtems_attribute attribute_set, |
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72 | rtems_id *id |
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73 | ) |
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74 | { |
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75 | rtems_task_config config; |
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76 | |
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77 | memset( &config, 0, sizeof( config ) ); |
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78 | config.name = name; |
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79 | config.initial_priority = initial_priority; |
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80 | config.storage_size = stack_size; |
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81 | config.initial_modes = initial_modes; |
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82 | config.attributes = attribute_set; |
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83 | |
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84 | return _RTEMS_tasks_Create( |
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85 | &config, |
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86 | id, |
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87 | _RTEMS_tasks_Allocate_and_prepare_stack |
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88 | ); |
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89 | } |
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